package com.wilson.android.library;

/*
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you under the Apache License, Version 2.0 (the
 "License"); you may not use this file except in compliance
 with the License.  You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing,
 software distributed under the License is distributed on an
 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 KIND, either express or implied.  See the License for the
 specific language governing permissions and limitations
 under the License.    
 */
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import sb.tiledui.Tile;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.util.Pair;
import android.widget.ImageView;

public class DrawableManager {
	private final Map<String, Drawable> drawableMap;
	//private final Map<String, Bitmap> bitmapMap;
	private final ArrayList<Pair<String, Bitmap>> arrayForBitmap;
	private ArrayList<Tile> arrayTile;

	public DrawableManager() {
		drawableMap = new HashMap<String, Drawable>();
		//bitmapMap = new HashMap<String, Bitmap>();
		arrayForBitmap = new ArrayList<Pair<String, Bitmap>>();
		arrayTile = new ArrayList<Tile>();

	}
	public void putImageUrlAndTile(String url, Tile cv){
		Pair<String, Bitmap> pair = new Pair<String, Bitmap>(url, null);
		arrayForBitmap.add(pair);
		arrayTile.add(cv);
	}

	public Drawable fetchDrawable(String urlString) {
		if (drawableMap.containsKey(urlString)) {
			return drawableMap.get(urlString);
		}

		Log.d(this.getClass().getSimpleName(), "image url:" + urlString);
		try {
			InputStream is = fetch(urlString);
			Drawable drawable = Drawable.createFromStream(is, "src");

			if (drawable != null) {
				drawableMap.put(urlString, drawable);
				Log.d(this.getClass().getSimpleName(),
						"got a thumbnail drawable: " + drawable.getBounds()
								+ ", " + drawable.getIntrinsicHeight() + ","
								+ drawable.getIntrinsicWidth() + ", "
								+ drawable.getMinimumHeight() + ","
								+ drawable.getMinimumWidth());
			} else {
				Log.w(this.getClass().getSimpleName(),
						"could not get thumbnail");
			}

			return drawable;
		} catch (MalformedURLException e) {
			Log.e(this.getClass().getSimpleName(), "fetchDrawable failed", e);
			return null;
		} catch (IOException e) {
			Log.e(this.getClass().getSimpleName(), "fetchDrawable failed", e);
			return null;
		}
	}

	public void fetchDrawableOnThread() {

		final Handler handler = new Handler() {
			@Override
			public void handleMessage(Message message) {
				int index =  (Integer) message.obj;
				Tile cv = arrayTile.get(index);
				Pair<String, Bitmap> pair = arrayForBitmap.get(index);

				//Log.i("SM", "Image download done, image url : "+pair.first);
				
				Bitmap bitmap = pair.second;				
				bitmap = Bitmap.createScaledBitmap(bitmap, cv.width, cv.height,true);
				
				cv.image = bitmap;
				cv.invalidate();

			}
		};

		Thread thread = new Thread() {
			@Override
			public void run() {
				for(int i=0; i<arrayForBitmap.size();i++){
					Pair<String, Bitmap> pair = arrayForBitmap.get(i);
					String url = (String) pair.first;
					Bitmap bitmap = null;
					try {
						bitmap = BitmapFactory.decodeStream(fetch(url));
					} catch (MalformedURLException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					} catch (Exception e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					pair = new Pair<String, Bitmap>(url,bitmap);
					arrayForBitmap.remove(i);
					arrayForBitmap.add(i, pair);
					Message message = handler.obtainMessage(1, i);
					handler.sendMessage(message);
				}
			}
		};
		thread.start();
	}

	public void fetchDrawableOnThread(final String urlString,final ImageView imageView){

		final Handler handler = new Handler() {
			@Override
			public void handleMessage(Message message) {
				imageView.setImageBitmap((Bitmap)message.obj);
			}
		};

		Thread thread = new Thread() {
			@Override
			public void run() {
				Bitmap bitmap = null;
				try {
					bitmap = BitmapFactory.decodeStream(fetch(urlString));
				} catch (MalformedURLException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				} catch (Exception e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				Message message = handler.obtainMessage(1,bitmap);
				handler.sendMessage(message);
			}
		};
		thread.start();
	}

	private InputStream fetch(String urlString) throws MalformedURLException,
			IOException {
		DefaultHttpClient httpClient = new DefaultHttpClient();
		HttpGet request = new HttpGet(urlString);
		HttpResponse response = httpClient.execute(request);
		return response.getEntity().getContent();
	}

}